Chinese civilizations were growing marijuana over 2, 000 years ago. That said, the plant might possibly have been cultivated very long before then. The background of marijuana usage dates back farther than most people would envision. Cultivation of the Cannabis sativa plant traces back several years.  The most primitive noted account of cannabis cultivation is in Chinese docs dating from 28 B .C. This simply means, you may find stories of an ancient Egyptian mummy obtaining remnants of ...